Securing protected content by identifying recording devices

A method includes identifying, using a machine learning algorithm, a recording device in a first image in a stream of images of a scene captured by a camera. The method also includes determining that the recording device is likely recording a protected resource based on a positioning of an aperture of the recording device and information associated with the recording device in the stream of images. The method additionally includes, in response to determining that the recording device is likely recording the protected resource, removing any content designated as protected content from a display screen.